BMW F10 550i N63 Downpipes (2-Bolt Flange)

30 Day Money-Back Guarantee | IN STOCK HIGHLIGHTS • Gain up to +43whp / 48wtq• Improved Turbo Spool• Enhanced Exhaust Note• Fully Reversible PROFILE ARM Motorsports new N63 Downpipes with the 2-Bolt midpipe flange for the 4.4L V8 Twin-Turbo powered 550i allows you to take your N63 engine to the next level. Made with full 304 Stainless Steel and 3" construction these downpipes provide a significant increase in power and torque over the OEM catted downpipes. In addition to the massive power gains, these downpipes open up an incredible exhaust sound from the turbocharged V8 that will shock and awe onlookers! By replacing the OEM downpipes with the ARM Catless Downpipes, you'll be removing the restriction from the OEM converters which will reduce exhaust back-pressure and allow the exhaust from the turbochargers to flow more freely. This increase in exhaust flow allows for the turbos to spool faster, increasing power and torque throughout the RPM rang